Banner VALU-BEAM Series - Manual (Page 5)

VALU-BEAM –
915 Series
page 5
Banner Engineering Corp. • Minneapolis, U.S.A.
Website: http://www.baneng.com • Tel: 888.373.6767
Sensitivity Control
(Turn CW to Increase)
Red Alignment
LED Indicator
915 Series Sensors Description
VALU-BEAM ® 915 Series sensors are rugged, self-contained photoelectric sensors
designed for especially demanding industrial applications where economy, performance,
and durability are important. They feature SPDT (single-pole, double-throw, form “C”)
electromechanical relay output and operate from a variety of supply voltages.
Powerful, modulated LED light sources provide a wide sensing range. The sensors are
extremely robust; being totally epoxy-encapsulated, they are highly resistant to shock,
vibration, moisture and corrosion.
915 Series sensors may be mounted from either the front or the rear, using the two
through-mount holes, or by their threaded base (mounting nut supplied), making them
ideal for conveyor and other production line applications.
The easy-to-see top-mounted red LED indicator (see Figure 1) simplifies alignment and
system monitoring. It lights whenever the sensor “sees” its own modulated light source.
Turn the Sensitivity control (on the sensor back panel) clockwise to increase gain.
Light or dark operate is selected by connecting the appropriate output relay contact to
the circuit under control (see Hookups, page 7).
Fiber Optic Models
Banner offers a complete line of both plastic and glass fiber optic assemblies to fit
VALU-BEAM 915 Series fiber optic model sensors. Glass fiber assemblies are
recommended for environments with high temperatures, extreme moisture and
corrosive materials; they are not recommended for applications requiring bending or
repeated flexing of fibers.
Plastic fiber optics are an economical alternative for piping photoelectric sensing light
into and out of confined areas where the environmental conditions allow, and they can
withstand repeated flexing. Banner plastic fiber optic assemblies are available in several
core sizes; the highest excess gain will be obtained with the larger fiber cores. Standard
plastic fiber optic assemblies are unterminated on the control (sensor) end. These
assemblies are approximately 2 m (6’) long and may be used as-is, or may be cut to
length as needed, using the supplied fiber cutter. Cutting and installation instructions
also are included with the fiber assembly.
Both plastic and glass fibers are offered in individual and bifurcated styles. Individual
fibers are used in pairs in the opposed sensing mode; one fiber transmits the light to
the sensing location, while the other fiber returns the received light to the sensor.
Bifurcated plastic fiber assemblies are two-way fibers, having a single sensing end that
both emits and receives light and dual control (sensor) ends, which attach separately to
the sensor. Fiber optic assemblies are available with a wide variety of sensing end
styles. Refer to your current Banner Photoelectric Catalog for a full selection.
*NOTES:
• 9 m (30') cables are available by adding suffix “W/30” to the model number of any cabled sensor (e.g. - SMW915FP W/30).
• A model with a QD connector requires an accessory mating cable. See page 8 for more information.
Figure 1. VALU-BEAM 915 Series sensor
features